Riding-harrow.



' No. 688,442. Patented Bag. I0, I91.

6'. SHAW. RIDING NARROW.

(Application filed my 8, 1901.;

(No Model.)

i Wih esszs 7 A; /7 lgaerfia m ing-frame is rendered flexible.

. crossbar 13. The singletrees 22 are attached UNITED STATES PATE T OFIF;

CHARLES SHAW, OF LAS ANIMAS, COLORADO.

RlDlNG-HARROW.

SPECIFICATION forming part of Letters Patent No. 688,442, dated December10, 1901. Application filed May 8, 1901- Serial No. 59 314. (No model.)

To all whom it may concern.-

Be it known that I,.OHARLES SHAW, a citizen of the United States,residing at Las Animas, in the county of Bent and State of Colorado,have invented a new and useful Riding-Harrow, of which the following isa specification.

My invention is an improved riding-'harrow; and it consists in thepeculiar construction and combination of devices hereinafter fully setforth and claimed.

In the accompanying drawings, Figure 1 is a top plan view of ariding-harrow constructed in accordance with my invention. Fig. 2 is aside elevation of the same. Fig.3 is a transverse sectional view of thesame, taken on a plane indicated by the line a a of Fig. 1.

In the embodiment of my invention I provide a pair of revolubleharrow-frames 1 of circular form, each of which comprises a series ofcrossed bars 2 and circular rims 3, which are secured on the ends ofsaid crossed bars. The latter are provided with harrowteeth 4, which arehere shown as of the usual form, but which may be of any suitable form.On the center of each of the barrow-frames is a vertical spindle 5. Thesaid spindles .5 are journaled in bearings 6-at the rear ends ofdraw-bars 7. A transversely-disposed doubletree Sis pivotally connectednear its ends to the front ends of the draft-bars 7, as by bolts 9. Alink-bar 10 has its ends pivotally connected to the said spindles 5,said linkbar serving to connect the rear ends of the draft-bars 7together, and hence also connecting the revoluble barrow-framestogether.

The riding-frame comprises a pair of longi tudinally-disposed bars 11,which have their front ends pivotally connected to the draftbars 7 as at12, and have their rear ends pivotally connected to the ends of a pairof crossbars 13 14, as by bolts 15. Thereby said rid- Supportingwheels16 are mounted in forks 17, the upper ends of which are attached to thedraft-bars 7 and form the pivots 12, which connect the front ends of thebars 11 to said draft-bars. A supporting-wheel 18 is mounted in a fork19, the upper end of which is attached to the bars 13 14. The driversseat 20 is supported by a bar 21, which is secured on the upper tendencyof the harrow to slide downward when the same is being used on ahillside is counteracted. The barrow-frames being capable of verticalmotion independently of each other readily clear themselves of trash andthe same are adapted to pass readily over stones and other obstructions.To en= able the barrow-frames to be raised and lowered, eitherindependently of each other of simultaneously, by the driver, I providea pair of bell-crank levers 23, which are fulcrumed to the bars 11, areconnected to the link-bar 10, near the ends thereof, by chains or othersuitable links 24:, and are connected by link-rods 25 to hand-levers 26.The latter have their lower. ends pivoted to the bars 11, as at 27, andare provided with the usual spring-pressed locking-dogs 28, which byengagement with segmentracks 29, with which the bars 11 are provided,lock the said levers 26, and hence the bell-cranklevers 23, in position,with the harrow-frames either raised or lowered, as may be required.Hence when the harrow is in operation one of the harrow frames may beraised to clear obstructions, while the other continues at work. Thebarrow-frames may be raised from the ground and locked in an elevatedposition when the machine is being drawn from one place to another andit 'is not desired that the harrows shall operate.

Having thus described my inventionfl claim 1. The combination ofharrowdrames, a link-bar flexibly attached to and connecting saidbarrow-frames, draft-bars flexibly connected at their rear ends to saidlink-bar and barrow-frames, a draft element connecting the front ends ofsaid draft-bars, and a riding- -frame, flexibly connected to saiddraft-bars,

at points between the'ends thereof, said riding-frame extendingrearwardly from said draft-bars and harrowframes, whereby saidharrow-frames are adapted for vertical move 3. In a riding-barrow, thecombination of harrow-frames, draft-bars flexibly connected thereto, adoubletree flexibly connected to the said draft-bars, a link-barflexibly connected to said draft-bars, and means to raise and lower saidbarrow-frames, siibstantially as described.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in the presence of two Witnesses.

CHARLES SHAW.

Witnesses:

T. F. DEAN, GREEN ROBINSON.

